Naukari4u

LHB TL & AC MCQ (31-45)
31.  What is the voltage rating of the AC motor used with WRA ?
  1. 110V, AC
  2. 230V, AC 
  3.  415 V, AC 
  4. None 
Show Answer
Correct Answer »  415 V, AC 

 

32.  What is the capacity of the motor provided in the WRA? 
  1.   1 HP  
  2.   0.5 HP
  3.  2 HP
  4. None 
Show Answer
Correct Answer » 0.5 HP

 

33.  Which type of motor used in WRA? 

  1. Single phase induction motor
  2. Two phase induction motor
  3. Three phase induction motor 
  4. None 
Show Answer
Correct Answer » Three phase induction motor

 

34.  Which type of motor used in the pump set for WRA? 
  1. Squirrel cage 
  2. Slip ring
  3. A (or) B
  4. None 
Show Answer
Correct Answer » Squirrel cage

 

35.  What is the main purpose of the pump controller? 

    1. To control WSP 
    2. To control WRA pump
    3.  To control contactors
    4. None of the above
Show Answer
Correct Answer » To control WRA pump

 

36.  What is the class of insulation of winding in the pump motor? 

    1. H- class  
    2. F-class
    3. E-class 
    4. None of the above
Show Answer
Correct Answer » F-class

 

37.  What is the full load current of motor of pump set of WRA? 

    1. 1.1 Amp
    2. 1.5 Amps
    3. 2.5 Amps
    4. 3.0 Amps 
Show Answer
Correct Answer » 1.1 Amp

 

38.  What is the rated speed of the pump set of WRA? 

    1. 1520 RPM
    2. 2800 RPM
    3.  3000 RPM
    4. 3200 RPM
Show Answer
Correct Answer » 2800 RPM

 

39.  What is the total head of the pump set for WRA? 

    1.   3 mts.  
    2.   5 mts.
    3.   8 mts.
    4. 10 mts.
Show Answer
Correct Answer » 8 mts.

 

40.  What is the discharging capacity of the pump set? 

  1. 0.5 LPS
  2. 0.7 LPS
  3. 0.8 LPS
  4. 1.0 LPS 
Show Answer
Correct Answer » 0.7 LPS

 

41.  What is the suction flange size of the pump set of WRA? 

  1.  1” BSP
  2.  2’’ BSP
  3.   3” BSP
  4.  4” BSP
Show Answer
Correct Answer » 1” BSP

 

42.  What is the protection used in the monoblock pump set of  WRA ?

  1. Single phasing
  2. Overvoltage
  3.  Dry run
  4. All of above
Show Answer
Correct Answer »
  1. Single phasing
  2. Overvoltage
  3.  Dry run

 

43.  How many pump sets provided in AC coach? 

  1. One 
  2. Two
  3.  Three
  4. Four
Show Answer
Correct Answer » Two

 

44.  Each pump in coach is alternately switched by the pump controller for how many hours? 

  1. 6 hours 
  2. 4 hours
  3.  3 hours
  4. 2 hours
Show Answer
Correct Answer » 4 hours

 

45.  What is the voltage of contactor coils of the LHB Variant RMPUs control panel? 

  1. 110 V DC
  2.  110 V AC 
  3. 230 V AC
  4.  415 V AC
Show Answer
Correct Answer » 110 V DC
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